Improved road-scraper



W. PATTERSON.

ROAD SGRAPBR.

No. 47,977. Patented May 30, 1865.

Jrwa v UNITED STATES PATENT OFFICE.

WM. PATTERSON, OF SALEM, NEW JERSEY.

IM P'ROVED ROAD-SCRAP; R.

Specification forming part of Letters Patent No. 47,977, dated May 30, 1865.

. Figure 1 is a perspective view of the said improved scraper in the position requiredfor scraping; and Fig, 2, a like view of the same in the position required to discharge the accumulated dirt, or to slide easily over thcsurface of the ground without scraping.

-Like*letters of reference indicate the same parts when in bot-h figures.

The object of my improvement 1s to afford a light draft and effective scraper for leveling and grading roadways, that will not requireto be lifted at either end to discharge thediit,

'ncr press downward increasingly upon the draft-animals in working theimplement, both of which objections lie against the roadscrapers heretofore used,

My invention consists, substantially as here inafter described and specified, in making the scraper proper concave on its face side, and

' arranging it in its bearings so that it can be readily caused to tilt over, discharge its accumulated dirt, and slide smoothly over it; in the arrangement of one or more wheels just in advance of the said scraper proper and back of the tongue, so that the same will support the weight of the rear end of the latter and its connections,'and prevent any downward pressure on the draft-animals in using the implement; in making the bar which connects the tongue and the scraper proper together in the form of a curve, so that the line of draft of the implement may be readily varied in relation to the face of the said scraper proper;

and in the arrangement of a small carrying-- wheel or runner at each end of the scraper proper, so that the same will support the upper edge of the said scraper above the surface of the ground or street after it (the scraper proper) has been tilted over, thus causing a lighter draft when not scraping.

' In the drawings, A is the scraper proper, B the weight-supporting wheel in advance of the scraper A, 0 the curved adjustable bar which connects the scraper A arid thetongue Dtogct-her, and E E the carrying-wheels for supporting the upper edge of the scraper A when the latter is in its tilted position.

The scraper proper, A is made of plate or boiler iron, has both its upper and lower edges straight, and is euivcdbetwcen thennso asto be slightly concave on its front or face side, for the purpose of giving it somewhat of a cutting or shearing property at itslower edge,

without causing its general inclination backward to be too great to retain its proper cou plenient of dirt in using the implement The weight-supporting wheel B is arranged to rotate in the line of draft and directly behind the rear end of the tongue I), and beneath the forward part of the curved bar C, which connects A and D together, supporting the said parts at a'suiiicicnt height to allow a free movement of the scraper A in tilting forward.-

On the rear part of the tongue D, or just, above the wheel B, aflat plate of iron, 11, haw ing curved arms (2 d, is. rigidly fixed, and to the under side of this plate at the curved connecting-bar C is united adjustably by means of staples (Z 01, one of which, (P, has a screwnut for tightening it, and thus fixing the-curved bar 0 at any position in its connection with the plate d which may be required.

The curved bar 0 is of iron, and has one of.

its arms, 0, longer than the other, a", for the purpose of holding the scraper proper, A, al ways in an oblique position to the tongue D or line of draft, and both of the said arms are bent downward, so as to reach behind the scraper A, and are also attached to the back of the latter by means of loops and staples a a, or hinged joints, so that the scraper A will be permitted to tilt freely forward from the upright position shown in Fig. l to the nearly-horizontal position shown in Fig. 2, as

occasion may require, and so that it will restagainst the downward-bent portions of the arms 0 0" when in its upright position, as seen in Fig. 1, and for the purpose of retaining it in this upright position when scraping anotched cm the implement in-scraping, and to restore; the scraper proper, A, to'its upright position.

from its-tilted or horizontal one, as occasion may require.

The carrying -wheels E E are adj ustably placed at each end of A, near its upper edge, so as to be clear of the ground in scraping, but so, also, as to supportthe said upper edge of A sufficiently above the ground to prevent its contact-therewith when the scraper A'has been tilted forward for the purpose of simple, transportation or movement of the implement from place to place without scraping.

It will be readily seen that in the operation of this road-scraper it will be of easy draft, and also effective for the purpose, thatit will not require to be lifted at either end to discharge its accumulated dirt, and that it can not press'downward upon the draft'animals in using it.

I,- wouldfurther remark that' the tongue D may be easily jointed atany suitable point in advance of the wheel B, if desired.

Having thus fully described my improve- .ment, whatI claim as new therein of my invention, and desire to secure by Letters Patcut, is-

1. A road-scraperhavin g its scraper proper, A, made in the curved form and arranged obliquely to the line of draft, as described and set forth, the said scraper A beingsupported in its, upright position by means'of arms c c, bent downward, behind, and hinged or looped to the back of the said scraper A, as

' described, so as to allow the latter to tilt forward from its uprightposition before the arms when required, as and for the purpofses'dcscribed.

2. The arrangement of the adjustable notched lever f, in combination with the curved bar g andscraper A, as andforthe purposespeci- 3. The curved connecting-bar 0, when ar-. ranged in combination with the tongue Dand scraper A, so as to be adjustable at its connection with the said tongue, substantially as described, for the purpose specified.

4. The arrangement of the carrying-wheels E E or their equivalents, in combination with the scraper proper, A, substantially in the manner described, for the purpose specified.

WILLIAM PATTERSON.

Witnesses:

BENJ. MORISON, ELIAS D. MOYER. 

